Metering pump assembly

Details Metering pump assembly Metering pump assembly

1985-10-22

1987-02-24

Croyle, Carlton R.

Pumps

One fluid pumped by contact or entrainment with another

Aerated column

417109, 417121, F04F 118, F04F 300

Patent

active

046454276

ABSTRACT:
An air lift pump delivers liquid from a sump to an elevated tundish. The tundish is divided by weirs into a plurality of compartments in cascade. Surplus liquid overflows from the upper compartments back to the sump to produce a constant depth in the lowest compartment. A second air lift pump operating at a predetermined immersion depth delivers a steady flow of liquid from the lowest compartment.

REFERENCES:
patent: 532699 (1895-01-01), Pohle 417109

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